Log turner and loader



No. 6l7,844'.

(No Model.)

Patented J an. l7, I899;

T. S. WILKIN.

LOG TURNER AND LOADER.

(Application filed Apr. 9, 1898.)

UNITED STATES PATENT @rFicE THEODORE S. I/VILKIN, OF BROOKVILLE,PENNSYLVANIA.

, LOG TURNER AND LOADER.

SPECIFICATION forming part of Letters Patent No. 617,844, dated January17, 1899.

Application filed April 9, 1898. $erial No, 677,075. (No model.)

T0 at whom; it may concern.-

Be it known that I, THEODORE S. WILKIN, of Brookville, in the county ofJefferson and state of Pennsylvania, have invented a new and usefulImprovement in Log Turners and Loaders, of which the following is adescription, reference being had to the accompanying drawings, which area part of this specification.

My invention relates in a general way to improvements in log turners andloaders of a class shown and described in Patent No. 583,560, issued tome June 1, 1897.

Practical use of log-turners heretofore known developed the fact thatsomething was yet desired in the construction of a log turner and loaderby means whereof a more satisfactory application of power to the toothedbar or nigger could be obtained, whereby thrust or push in approximatelydirect lines could be secured, while at the same time equal or moreflexibility of the turner itself could be had, and my improvements aredirected chiefly-to these objects and incidentally to minor benefitsrelating thereto.

The invention consists of the mechanism, its parts and combinations ofparts, as hereinafter described and claimed, or their equivalents,

In the drawings, Figure 1 is an elevation of my improved log turner androller, parts being broken away for convenience of illustration. Fig. 2is a fragment of the mechanism, including a detail of the constructionof the lower extremity of the toothed bar and devices intimately relatedthereto, shown at the left center of Fig. 1.

In the drawings, A A is the framing of a mill. 7

B is a carriage traveling on suitable rails therefor on the floor of themill.

0 is a head-block of the carriage.

D is a logway or skid opposite the path of the carriage,-the floor ofwhich logway terminates near to and flush with the top surfaces of thehead-blocks O, of which there are two or more on the carriage, thoughonly one is shown.

The nigger or toothed bar consists of an upright bar 5, having a curvedor bent lower portion 5, which at its extremity is pivoted to a block 6,which slides on the fixed guide- An antifriction bearing-roller 9 islocated between the rails of the bar at its upper extremity, the rollerprojecting slightly beyond the ends of the rails. A number of teeth 1010 in series are located between the rails of the bar and severallybetween blocks 8 8 and are pivoted to the rails of the bar near the prear edge of the bar, the teeth being of such size and so mounted in thebar as by gravity to rest on the block 8 below it at the front edge ofthe bar and project somewhat beyond the front edge of the bar, the teethbeing adapted to serve as means for engaging a log and turning it as thebar is pushed up or to roll it over and thereby load it onto thecarriage.

For operating the nigger or toothed bar a push-rod 11 is pivoted at itsupper extremity to the toothed bar medially and advisably near the lowerend of the straight portion of the toothed bar and just at or above thecurved lower portion of the bar, which push-rod at its lower extremityis pivoted in a head-plate 12, fixed on the upper end of a piston-stem13, the piston of which stem reciprocates in the cylinder 14:. Thehead-block 12 slides on two guide-rods 15 15, that are fixed in a planeparallel with the axis of the cylinder 14:. It will be observed that theguide-rod 7 is disposed in a substantially vertical position which ispractically parallel with the normal line of movement of the toothed bar5, though the toothed bar is so mounted as to be capable of swingingsomewhat toward the right or'left to permit of a desired cant or rakewith reference to the log to be operated on. The push-rod 11 isconveniently secured to the toothed bar 5 by being located between therails thereof and pivoted thereto, as clearly shown in Fig. 2.

In connection with the means above described for pushing the nigger upand bring ing it down there is employed abraee-rod 16, which at itsupper end is pivoted to the toothed bar 5 at or near its upperextremity, and at its lower extremity the brace-rod is pivoted to ahead-block 17, which is fixed on the upper end of a piston stemlS, thepiston of which reciprocates in the cylinder 19. The head-block 17travels on fixed guide-rods 20, disposed parallel to the axis of thecylinder 19. This brace-rod 16 is adapted to hold the toothed bar up toits work or to tilt it limitedly to right or left, and to a certainextent it may be employed to lift on the toothed bar. The cylinders 1dand 19 are each disposed in an oblique position and inclining inwardlyat the top toward the perpendicular of the toothed bar, whereby they areadapted to act opposingly and conjointly 011 the toothed bar foroperating it either by lifting it or shifting it laterally andretrieving it, as required in active use. The cylinders 14 and 19 andthe guide-rods 7, 15, and 20 are conveniently secured. in position onthe framing A and to each other in any suitable manner. The cylinders 14and 19 are adapted for the use of any suitable fluid medium, but areordinarily supplied with steam for moving the pistons therein.

hat I claim as my invention is 1. In a log-turner, the combination of atoothed bar capable of movement upwardly and downwardly secured at itslower extremity to a guide-block, a rod or way on which said blockreciprocates, a push-rod connected medially to the toothed bar and to apoweractuated reciprocating device, said power-actuated device, abrace-rod connected to the upper extremity of the toothed bar and to apower-actuated device, and said power-actuated device.

2. The combination with a vertically-movable toothed bar connected atits lower extremity to and guided by a vertically-disposed guide or way,a push-rod connected medially to the toothed bar and also to apower-actuated device movable on a guide or way in a direction obliqueto the guideway of the toothed bar, and a brace-rod connected to theupper extremity of the toothed bar and to a poweractuated device movableobliquely to the perpendicular and in a reverse direction to that of thedevice actuating said push-rod.

The combination with a vertically-movable toothed bar having alaterally-bent lower portion, a guide-block to which the lower end ofthe toothed bar is connected, and a vertically-disposed guide rod or wayon which the guide-block travels, of a push-rod pivoted at its upper endto the toothed bar medially, a power-actuated head-block independent ofsaid guide-block to which the push-rod is pivoted, and guide rods orways disposed ob liquely to the toothed-bar guideway aforesaid, on whichlatter guide rods or ways the power actuated head block travels, saidtoothed-bar guide-rod and said head-block guide-rods being on one andthe same side of the toothed bar.

4. The combination with a vertically-movable toothed bar having alaterally-bent lower portion, a guide-block to which the lower end ofthe toothed bar is connected, and a Vertically-disposed guide rod or wayon which the guide-block travels, of a push-rod pivoted at its upper endto the toothed bar medially, a power-actuated head-block to which thepushrod is connected, guide rods or ways disposed obliquely to thetoothed-bar guideway aforesaid, on which latter guide rods or ways thepower actuated head block travels, said toothed-bar guide-rod and saidheadblock guide-rods being on one and the same side of the toothed bar,a brace-rod connected to the toothed bar near its upper extremity and toa power-actuated headblock, said brace-rod head-block, and other guiderods or ways disposed obliquely to the perpendicular on which saidtoothed-bar guide-block travels.

5. The combination with a vertically-movable tooth-ed bar, ofobliquely-disposed powersupplying cylinders located on opposite sides ofthe prolonged axis of the toothed bar the prolonged axes of whichcylinders would intersect the axis of said toothed bar, headblocks onthe piston-stems of said cylinders traveling on ways parallel with theprolonged axes of said cylinders, a push-rod and a bracerod respectivelyconnecting the head-blocks severally to the toothed bar medially and atits upper extremity, and means for guiding the lower extremity of thetoothed bar to travel vertically reciprocally.

6. In a log-turner, the combination with a vertically-movable toothedbar of a vertically-disposed guide-rod to which the toothed bar isconnected movably and by which it is guided vertically, and reverselyobliquely disposed guide-rods and cylinders paralled therewith onopposite sides of the axis of the toothed bar and connected to thetoothed bar by hinged or pivoted rods adapted to communicate movement tosaid toothed bar from opposite sides and through such pivoted rods inreverse directions.

In testimony whereof I affix my signature in presence of two witnesses.

THEODORE S. XVILKIN. lVitnesses:

BEN M. CLARK, CYRUS H. B'Loon.

